Calk attachment for horseshoes



J. D. DOUGLAS. CALK ATTACHMENT FOR HORSESHOES.

APPLICATION FILED FEB.7, 1920- .L Hm WW e m T In 2 a m 2 z m 1 P 13 1. n. DOUGLAS.

CALK ATTACHMENT FOR HORSESHOES.

APPHCATION men FEB-7,1920- 1 ,3'73, 1 1 8'; Patented Mar. 29, 1921.

2 SHEETS-SHEET 2.

JOHN DAVIES DOUGLAS, OF BURKBURNETT, TEXAS.

CALK ATTACHMENT FOR HORSESHOES.

Specification of Letters Patent.

Patented Mar. 29, 1921.

Application filed February 7, 1920. Serial No. 357,009.

To all whom it may concern Be it known that I, JOHN Din ins Doce- LAS, a citizen of the United States, residing at Burkburnett, in the county of Wichita and State of Texas, have invented certain new and useful Improvements in Calk Attachments for Horseshoes, of which the following is a specification.

This invention relates to improvements in horseshoe calks and cushions therefor, the object being to provide detachable means of this character which are applicable to the conventional type of shoe without material modification of its construction.

In the carrying out of the invention I contemplate employing novel means for connecting the calks to the shoe so that these elements will be retained in place without unnecessarily interfering with the resiliency of the cushioning means.

A further object in view is to provide a type of call: which is interchangeable in respect of its application to the toe or heel and which is capable of reversal so as to eliminate likelihood of injury to the feet by interfering during movement of the feet.

These and such other objects as may hereinafter appear are attained by the novel construction, combination and arrangement of parts to be hereinafter specifically described and claimed. Reference will now be had to the accompanying drawings forming a part of this specification, wherein:

Figure 1 is a plan view of a shoe showing the application of a set of calks and cushioning means therefor,

Fig. 2 is a sectional view on the line 2-2 of Fig. 1,

Fig. 3 is a sectional View on the line 3-3 of Fig. 1,

Fig. 1 is a plan view of a shoe and its call; members with an intervening cover or pad,

Fig. 5 is a longitudinal sectional view on the line 55 of Fig. 4,

Fig. 6 is a transverse sectional view on the line 66 of Fig. 4, and

I 7 is a plan View showing the application of reversible calks of the type comprehended by my invention.

Throughout the following detail descrip tion and on the several figures of the drawings, similar parts are referred to by like reference characters.

Referring to the drawings, Figs. 1 and 2 specifically, 1 designates a shoe of conventional form having applied to its toe the calk 2, fastened thereto by means of the screw bolts 3. The call: comprises the base portion 2 through openings in which the fastening members 3 pass and the ground engaging flange 4: bent at right angles to the said base portion. Intermediate the ealk and the shoe I dispose a cushion member 5. At the heel of the shoe I apply a short distance from the extremities a suitable heel calk having the general characteristics of the toe calk, these heel calks being designated 2. As in the case of the toe call: a pad or cushion 5 is interposed between the shoe and the calk and a locking plate 6 is disposed upon the call: 2, said plate having a bendable flange 7 which is adapted to be bent over into the space between the fasten ing means 3 so as to coact with the heads to prevent their turning after the adjustment of the calks in place. In known devices of this character, wherever a pad or cushion is employed, the fastening means are usually of such a form as to require the calk to be very tightly clamped to the shoe, as otherwise the calk would rotate about the fas tener or become loosened or displaced. By employing the spaced fastening means 3 and the locking flange 7 I am able to relatively lightly clamp the calk upon the shoe with out interfering with the resiliency of the cushion, this being of considerable advantage in absorbing the shock where the shoes are used upon a hard surface and where in many cases the feet of the animal are tender or subject to soreness.

In conjunction with the construction just described I contemplate using a covering or pad 8, as shown in Figs. 1 and 5, said covering being applied to the shoe so as to completely inclose or cover the under portion of the foot for the purpose of preventing what is customarily called balling. The covering 8 being placed beneath the calk and the rubber cushion adds to the cushioning effect and increases the resiliency of this element. The covering 8, as shown in the figures mentioned, is preferably provided at the heel portion with a thick pad 9.

In Fig. 4 the calks shown are somewhat different in their specific construction from the calks depicted in Figs. 1 and 2, but they are of the general simple type described and are designated by the same reference characters.

In Fig. 7 the calks are also of the same flange 4 may be arranged at the outside of the shoe, or at the inside as indicated in dotted lines in Fig. 7, as conditions require. The flange lying substantially longitudinally prevents side slipping at the heel; but under certain conditions some horses are prone to injure themselves due to the manner in which they move their feet, and where the flange positioned at the outside of the shoe is likely to cause such injury the ealk may preferably'be turned into its reverse position shown in dotted lines so that the flange will be at the inner side. This does not in any way interfere with the effectiveness of the member and the advantage is quite apparent in respect to the utility of the calk at any one of the places interchangeably.

I especially arrange the toe calk in such a position at the forward extremity of the shoe as to tend to prevent the animal from toeing or turning its feet over forwardly as when the calk is placed .too far from the forward end of the shoe.

It will be apparent that a simple construction of calk is thus provided in conjunction with resilient cushion means whenever desired, and a material saving in expense is made because the shoe does not have to be specially manufactured for its application. In tact the only necessary thing to do is to drill and thread suitable apertures to receive the fastening means. The calks are provided with the form of ground-engaging flange which by reason of its uniformity in thickness will remain sharp throughout the wear which it is possible to obtain from the material.

Having thus described my invention, what 4 I claim as new is:

The combination with a shoe, of a. calk having a base portion and a. groundengaging flange, a pair of headed fastening screws extending through the base of the call; in a thereof with a tongue adapted to be returned between the heads of the screws to interlock therewith and prevent the screws from working loose.

In testimony whereof I aflix my signature.

JOHN DAVIES DOUGLAS. 

